| 光伏并网逆变器空间电压矢量双滞环电流控制新策略 |
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| 引用本文： | 王新勇,许炜,汪显博,范波.光伏并网逆变器空间电压矢量双滞环电流控制新策略[J].电力系统保护与控制,2011,39(10):110-115，120. |
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| 作者姓名： | 王新勇 许炜 汪显博 范波 |
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| 作者单位： | 1.河南科技大学电子信息工程学院，河南 洛阳 471003;2.上海大学机电工程与自动化学院，上海 200072 |
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| 摘 要： | 提出了一种适用于三相光伏并网逆变器的双滞环电流控制改进算法。根据逆变器线电流与功率器件开关状态的关系，对线电流实行解耦控制，利用双滞环来判断参考空间电压矢量的位置，结合锁相环电路对输出的开关状态进行检测，构成频率闭环控制。最后利用Matlab/Simulink工具箱和3 kW实验平台对双滞环控制算法进行验证。结果表明，该算法保留了传统滞环控制电流跟踪响应快、有限流能力的优点，同时也有效地克服了开关频率变化不固定、开关损耗较大等问题。
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| 关 键 词： | 并网逆变器 空间电压矢量 双滞环 开关频率 仿真 |
A novel double hysteresis loop current control method for three-phase PV grid-connected inverter with voltage space vector |
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| WANG Xin-yong,XU Wei,WANG Xian-bo,FAN Bo.A novel double hysteresis loop current control method for three-phase PV grid-connected inverter with voltage space vector[J].Power System Protection and Control,2011,39(10):110-115，120. |
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| Authors: | WANG Xin-yong XU Wei WANG Xian-bo FAN Bo |
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| Affiliation: | WANG Xin-yong1,XU Wei2,WANG Xian-bo1,FAN Bo1 (1. School of Electronics and Information Engineering,Henan University of Science and Technology,Luoyang 471003,China,2. School of Mechanical Engineering and Automation,Shanghai University,Shanghai 200072,China) |
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| Abstract: | An improved algorithm of double hysteresis loop current control method for three-phase PV grid-connected inverter is proposed.The decoupling control of the line current is realized under the relationship between inverter line current and switch status of power instrument. The position of reference space voltage vector can be judged by double hysteresis loop. Output switch state can be detected by phase-locked loop circuit, thus the frequency closed-loop control is constructed.At last,the algorithm is simula... |
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| Keywords: | grid-connected inverter SVPWM double hysteresis loop switching frequency simulation |
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